Home / 7,220.80-10,840.96-4,628.80

Finding the Fourth Proportional to 7,220.80, 10,840.96 and 4,628.80

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Solution

The fourth proportional to 7,220.80, 10,840.96 and 4,628.80 is: 6,949.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.80 : 10,840.96 = 4,628.80 : x
  2. Step 2: Convert to fraction form
    7,220.80/10,840.96 = 4,628.80/x
  3. Step 3: Cross multiply
    7,220.80x = 10,840.96 × 4,628.80
  4. Step 4: Simplify right side
    7,220.80x = 50,180,635.65
  5. Step 5: Solve for x
    x = 50,180,635.65/7,220.80
  6. Step 6: Final answer
    x = 6,949.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.